參數(shù)資料
型號(hào)： MAX9952FCCB+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 14/24頁(yè)
文件大?。?/td> 0K
描述： IC PMU DUAL 64TQFP
標(biāo)準(zhǔn)包裝： 750
系列： *
MAX9951/MAX9952
Dual Per-Pin Parametric
Measurement Units
21
Maxim Integrated
Ground, DUT Ground, and IOS
The MAX9951/MAX9952 utilize two local grounds,
AGND (analog ground) and DGND (digital ground).
Connect AGND and DGND together on the PC board.
In a typical ATE system, the PMU force voltage is rela-
tive to DUT ground. In this case, reference the input
voltages IN0_ and IN1_ to DUT ground. Similarly, refer-
ence IOS to DUT ground. If it is not desired to offset the
current control and measure voltages, connect IOS to
DUT ground potential.
Reference the MSR_ output to DUT ground.
Settling Times and
Compensation Capacitors
The data in the
Electrical Characteristics table reflects
the circuit shown in the
Functional Diagram that
includes a single compensation capacitor (CX_) effec-
tively across all the sense resistors. Placing individual
capacitors, CRA, CRB, CRC, CRD, and CRE directly
across the sense resistors, R_A, R_B, R_C, R_D, and
R_E, independently optimizes each range.
The combination of the capacitance across the sense
resistors, along with the main amplifier compensation
comparator, CM_, ensures stability into the maximum
expected load capacitance while optimizing settling
time for a given load.
Digital Inputs (SCLK, DIN,
CS, and LOAD)
The digital inputs incorporate hysteresis to mitigate
issues with noise, as well as provide for compatibility
with opto-isolators that can have slow edges.
Temperature Monitor
Each device supplies a single temperature output signal,
TEMP, that asserts a nominal output voltage of 2.98V at a
die temperature of +25°C (298K). The output voltage
increases proportionately with temperature at a rate of
10mV/°C. The temperature sensor output impedance is
15k
Ω (typ). Determine the die temperature using:
TDIE = (100) x VTEMP - 273 [°C]
Exposed Pad
The exposed pad is internally biased to VEE. Connect
to a large ground plane or heatsink to maximize thermal
performance. Not intended as an electrical connection
point. Leave EP electrically unconnected, or connect to
VEE. Do not connect EP to ground.
Chip Information
PROCESS: BiCMOS
Selector Guide
PART
DESCRIPTION
MAX9951DCCB
Internal 10k
Ω force-sense resistor
MAX9951FCCB
External force-sense resistor
MAX9952DCCB
Internal 10k
Ω force-sense resistor
MAX9952FCCB
External force-sense resistor
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